Re: Oops caused by race between livepatch and ftrace

From: Josh Poimboeuf
Date: Wed May 22 2019 - 09:03:33 EST


On Tue, May 21, 2019 at 11:42:27AM -0500, Josh Poimboeuf wrote:
> void module_enable_ro(const struct module *mod, bool after_init)
> {
> + lockdep_assert_held(&text_mutex);
> +

This assertion fails, it turns out the module code also calls this
function (oops). I may move the meat of this function to a
__module_enable_ro() which the module code can call.

--
Josh